Application 17/704,718 is a continuation of application No. 17/115,037, filed on Dec. 8, 2020, granted, now 11,286,253.
Application 17/115,037 is a continuation of application No. 16/633,684, granted, now 10,889,578, issued on Jan. 12, 2021, previously published as PCT/KR2018/008379, filed on Jul. 25, 2018.
Claims priority of application No. 10-2017-0096212 (KR), filed on Jul. 28, 2017.
Prior Publication US 2022/0281861 A1, Sep. 8, 2022